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For research and educational purposes only. Not intended for human consumption.

Hexarelin

Well Researched
Updated Dec 2025

Hexapeptide GHRP | Growth Hormone Release & Cardioprotection

InjectableNasal
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100-300mcg daily
2-3 times daily
Injectable
SubQ: Lower abdomen (2 inches from navel)
8-16 weeks
Typical duration
2-8°C
Refrigerated

Overview

What is Hexarelin?

Hexarelin (also known as Examorelin) is a synthetic hexapeptide growth hormone releasing peptide (GHRP) and one of the most potent GH secretagogues studied. It stimulates growth hormone release through the ghrelin receptor (GHS-R1a) and uniquely binds to cardiac CD36 receptors, providing cardioprotective effects independent of GH release. Banned by WADA

Key Benefits

Most potent GHRP for GH release, unique cardioprotective effects via CD36 receptor, supports tissue repair and recovery, neuroprotective properties.

Mechanism of Action

Binds to ghrelin receptor (GHS-R1a) on pituitary somatotrophs to stimulate pulsatile GH release. Also activates cardiac CD36 receptors providing GH-independent cardioprotection through anti-apoptotic and anti-fibrotic mechanisms.

Molecular Information

887.04 Da
Weight
6
amino acids
Synthetic hexapeptide (GHRP)
Type
Amino Acid Sequence:
His-D-2-methyl-Trp-Ala-Trp-D-Phe-Lys-NH2
* Derived from GHRP-6 with 2-methyl-Trp substitution for enhanced stability and potency

Pharmacokinetics

Peak
30 min
Half-life
1 hr
Cleared
~5 hrs
100%50%0%0h6h12h18h24h
Peak
Half-life
Cleared
Imbimbo et al. 1994

Research Indications

Growth Hormone Release

Most potent GHRP studied, stimulating dose-dependent GH release with peak levels at 30 minutes post-injection.

IGF-1 Elevation

Increases insulin-like growth factor 1 through enhanced pituitary GH secretion.

Pulsatile GH Pattern

Preserves natural GH secretion rhythm when dosed appropriately throughout the day.

Research Protocols

Disclaimer: Hexarelin is the most potent GHRP but causes faster desensitization than Ipamorelin. Strict cycling (8-16 weeks on, 4-6 weeks off) is essential.

GoalDoseFrequencyRoute
GH Optimization100mcg3x daily (morning, midday, evening)SubQ
Cardioprotection Research100-200mcg2x dailySubQ
Recovery/Anti-Aging100mcg2x daily (morning and bedtime)SubQ
With GHRH (Synergistic)100mcg hexarelin + 100mcg CJC-12952-3x dailySubQ

Timing: Administer on empty stomach (2+ hours after eating, 30+ minutes before eating) for optimal GH release. Evening dose 30 minutes before bed maximizes nocturnal GH pulse.

Peptide Interactions

How to Reconstitute

Important: Always use bacteriostatic water (BAC). Sterile technique is essential.

1

Clean both vial tops with alcohol and let dry completely

2

For 2mg vial: Add 2mL bacteriostatic water (creates 100mcg per 10 units)

3

For 5mg vial: Add 2.5mL bacteriostatic water (creates 200mcg per 10 units)

4

Inject water slowly down the side of the vial to prevent foaming

5

Gently swirl or roll vial - do not shake vigorously

6

Solution should be clear and colorless

7

Label with reconstitution date and concentration

8

Store immediately in refrigerator at 2-8°C

Dosing Calculator

Calculate your injection volume with visual dosing guide

FINAL CONCENTRATION
2.50mg/mL
Each milliliter contains 2.50 mg of peptide
VISUAL REFERENCE (RESEARCH USE ONLY)

To obtain 250 mcg from this solution:

Draw 0.10 mL=10 units

(1 mL = 100 units on any insulin syringe)

0102030405060708090100
00.10.20.30.40.50.60.70.80.91.0
0.10 mL
10 units

Draw to this mark for 250 mcg

This calculator is for research purposes only. Always verify calculations and consult protocols.

Quality Indicators

Third-party COA verification

Purchase from vendors providing certificates showing >98% purity and correct molecular weight (887 Da).

Proper cold chain shipping

Peptide should arrive with ice packs in insulated packaging.

Vacuum-sealed vials

Legitimate products create vacuum when reconstituted.

Monitor for desensitization

GH response decreases over time - follow cycling protocols strictly.

Cortisol and prolactin effects

Unlike Ipamorelin, hexarelin can elevate cortisol and prolactin.

Pre-mixed solutions

Avoid pre-reconstituted products - hexarelin degrades rapidly in solution.

What to Expect

  • Day 1-7: Improved sleep quality, potential facial flushing post-injection
  • Week 2-4: Enhanced recovery from exercise, improved skin quality
  • Week 4-8: Noticeable improvements in lean mass and fat loss, some desensitization may begin
  • Week 8-12: Continued benefits but GH response reduced 40-50% from baseline
  • Week 12-16: Maximum cycle length - take mandatory 4-6 week break

Side Effects & Safety

Side Effects

  • Most potent GHRP but also highest side effect profile among GHRPs
  • Elevates cortisol and prolactin at standard doses - unlike Ipamorelin
  • May cause water retention, particularly in first 1-2 weeks
  • Can affect glucose metabolism - monitor if diabetic or pre-diabetic
  • Not recommended for those with active cancer due to growth-promoting effects
  • WADA prohibited substance - banned in competitive sports

When to Stop

  • Signs of desensitization
  • Significant cortisol/prolactin elevation
  • Glucose metabolism issues
  • Water retention concerns
  • As directed by healthcare provider

References

3 Studies

Growth Hormone-Releasing Activity (1994)

Human | 0.5-2 μg/kg IV | Single dose | Dose-dependent GH release

Double-blind study demonstrating dose-dependent GH release. Peak plasma GH at 30 minutes.

View Study

Myocardial Function After MI (2018)

Mouse | 0.3 mg/kg/day SubQ | 21 days | Improved LV function, reduced fibrosis

Hexarelin treatment reduced LV collagen concentration by ~53%, decreased inflammatory cytokines.

ALS Neuroblastoma Model Protection (2023)

In vitro | 1 μM | Human neuroblastoma cells | Neuroprotective effects

Hexarelin protected cells from H2O2-induced cytotoxicity by increasing Bcl-2 expression.

Quick Start Guide

Typical Dose
100mcg (10 units if mixed at 100mcg/10 units)
How Often
2-3 times daily for pulsatile GH release
Where to Inject
SubQ: Lower abdomen
Timing
Morning, midday (optional), and 30 minutes before bed on empty stomach
Effects Timeline
GH peak at 30 minutes, IGF-1 elevation in 1-2 weeks, body composition changes in 4-8 weeks
Storage
Refrigerate at 2-8°C immediately after reconstitution. Use within 4 weeks.
Cycle Length
8-16 weeks maximum
Break Between
4-6 weeks mandatory to restore GH response

Research Disclaimer

Hexarelin is sold for laboratory research purposes only and is not intended for human or animal consumption. The information provided on this page is compiled from published research, veterinary studies, and anecdotal reports for educational purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations. Any research involving Hexarelin must comply with all applicable local, state, and federal regulations. BioInfinity Lab makes no claims regarding the safety or efficacy of Hexarelin for any purpose. Consult qualified professionals for any research applications.